Simo n ingersoll



titi-inl' gratta @strut dimite.

Lenen Patent No. 95,588, dated october 5, 1869.

IMPRVEIEBNT IN SPRING-SCALES.

The Schedule referred to ln theleLetten Patent and making part of the same.

To all`wlwm-fit mag/concern:

Be it known that I, SIMON INGERsoLL,`of Brooklyn, in the county ofKings, and State of N ew York, have vinvented Acertain new, and useful Improvements in Spring-Scales for Weighing; and I do hereby declare that the following is a full, clear, and exact description thereof, referepce being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part ofthis specification, in which- Figure 1^,in the annexed drawings, represents a side elevation ot' scales and frame.

-Figure 2 is a frontyiew of the same.

Figure 3 represents a'rear view.

The nature of my invention consists in the improvement oi' spring-scales, when constructed with the combinati'on of devices hereinafter described.

A represents the hase of the frame.

IS is an upright, secured `to the base -by means of screws.

C designates a horizontal beam pivoted between the semicircular elevations b b, and extending from the li'ont end to near the rear end of base A.I

,'lhe beam Gis vs nliiciently raised above the base A to admit of a limited vertical play.

d and G represent two levers, having their`- fnlcra at the front end of the arms a. and a', the said arms being attached to upright B.

The levers d and G 4will pass through slots inupright B, at their rear end.

frepresents a metal rod, pivoted, at its upper-end,

to the outer end ci' lever d, and its lower end to beam C.

To the outer endof lever G is pivoted the rack-bar l', the said rack-bar being made to -gear in pinion m, which plays in a` block fastened to upright B.

The axle Vof pinion m penetrates upright B, dial.- plgte D, and, at its end, is secured to the hand or indicator g. 4

s designates a spiral spring, to the top ,of which is attached acap, with a screw-bolt, t, secured to it.

"lhe said screw-bolt will go upward through lever d,.- and is furnished with a nut, by the operation of which the lever' g can be depressed or elevated, as will be hereafter seen.

V represents a hook, pivoted at the inner end of lever Gr, 0n this hook the bail E and scale E' are suspended.

The lower end of spring s terminates in a hook,

which embraces the pivot that confines hook V in its place.

g g represent two thumb-screws, g being chieiy designed to keep the hand q at zero.

G, by its operation, will control the vertical motion ofbeam C.

E designates the scale for holding the object to be weighed.

In operating my scales, the weight beingplaced on the scale E', the bar G will descend toa degree proportioned to that weight, and to the Strength of spring s. As the inner end of lever G descends, the outer end, .to which is attached the rack-bar h, will ascend and operate pinion m. Pinion m, in turn, will act on the hand and indicate the weight on the dial.

By the operation of the nut on spring s, the scale can be made to weigh heavy or light at pleasure.

` The dial D,it will be observed, can be moved around on itspivot by means of a thumb-piece, X, attached to its periphery, and, in weighing4 butter or lard, the vessel in which it is contained will be first laid on the scale E', and the thumb-piece X used to indicate its weight. 'I h'e butter will he then put into the vessel, and the dili'erence between the hand q and the thum piece will'be' the net weight of thearticle.

A modification of my invention may be made by dispensing with beam C, and using a set-screw to regulatelever d.

Having thus described my invention, What I claim, land desire to secure by Letters Patent, is-

1. The lever G, in combination with rack-bar h, pinion m., spiral spring vs, and lever d, all arranged to operate substantially as described.

2,. A scale, consisting of base'fA, upright B, beam C, rod f, levers d and G, rack-bar h, pinion m, and spring s, dial-plate D and bail E, the whole arranged Ato operatesubstantially as set forth. l

In testimony that I claim the foregoing as my own, I aiiix my signature, in presence of two witnesses.

SIMON INGERSOLL.

Witnesses.:

PHILIP FrrzsrMMoNs, NIcHLAs 4Bucrrnannn. 

